Plancwrai ll co



G. E. MARLATT. CASTING JAW FOR LINOTIYPE MACHINES.

mwucmou mm SEPT-2h 1915.

Patented Oct. 7, 1919.

GEORGE EL MARLATT, OF PASADENA, CALIFORNIA.

CASTING-JAW FOR LINOTYPE-MACHINES.

Specification of Letters Patent.

Application filed September 21, 1915. Serial No. 52,954.

To all whom it may concern:

Be it known that I, GEORGE E. MARLATT, a citizen of the United States, residing at Pasadena, in the county of Los Angeles and State of California, have invented .a new and useful Improvement in Casting-Jaws for Linotype-Machines, of which the following is a specification.

My invention relates to casting jaws for linotype machines and has for its object the provision of means for adapting the right and left hand casting j awsfor use as a ma trix slide holder for casting borders, dashes, etc., a further object being'to provide a -resilient right hand jaw. for preventing the forcing of an overfull line of'matrices into casting position. A further object is to provide a suitable latch for the right hand casting jaw. Other objects may appear in the Similar characters ofreference indicate the same parts throughout the specification and in the several views of the drawings forminga part hereof and in which Figure lvis arear elevation of the pair of casting jaws in which both the right and left hand casting jaws are shown equipped as a matrix slide holder for casting borders, dashes, etc.; Fig. 2 is'a fragmentary sectional elevation of the right hand jaw on the line 22 in Fig. 1; 3 is a sectional elevation of the same on the line 33, Fig. 1; and Fig. 1 is a sectional elevation of the lefthand jaw on the line 4 4, Fig. 1..

My matrix slide holder, as shown in Figs. 1 and 1, comprises a slide 1 which is, dovetailed into and slidable in the left hand casting jaw 2 and which is provided'with a suitable die 3 formed. in the outer face of the slide 1 and preferably near the upper edge thereof when the slide is in position for use, but the slides 1 in each of the jaws 2 and 6 may be reversed so that the die will be near the bottom of the jaw and out of the range of the casting slot whentheface of the jaw is to be usedfor ordinary purposes. The form of the die 3 in the slide may conform to any desired style of border, dash, etc., and separate slides may be provided for the diflerent styles of borders and dashes used in a machine. The slide 1 may be pro-- vided with an extension 4: of desired length on the casting surface, as indicated by broken lines in Figs. 1 and 4, in order to increase the thickness thereof on the top or bottom for the purpose of producing blanl;

Patented Oct. 7, 1919.

slugs of reduced height where interfering parts of the mold are proportionately reduced in order to reduce the depth of the casting slot therein. When the aforesaid device is in use the right and left hand jaws are held in contact and are prevented from separation by means of the jaw setting pin 5 which is commonly used for this purpose .on linotype machines.

A common source of trouble in linotype machines conslsts 1n the shearing of the lower ears of the matrices by the advance base. A vertical extension 8 is provided on the upper edge of the base, and an upwardly extending portion 9 is also provided thereon at the opposite end and is separated from the head 7 by a slot 10, the adjacent sides of the head 7 and the portion 9 being pro vided with lateral grooves 11.

wardly extending portions 8 and 9 of the base 6 andare secured therein by means of the pins 13, thus forming guides upon which the head may slide backward and forward. Another similarrod 14 is secured near the top of the head 7 by means of a pin 15 and extends through the slots 11 and into the portion 9 of the base and carries a spring 16 which is adapted to compress between the head 7 and the portion 9 of the base for resiliently holding the head in its outermost position.

l/Vhen a line of matrices is deposited be- A pair of rods 12 extend through the upi tween the fingers in the transfer carriage and lowered into position between the finger 17 and the forward end of the head 7, the matrices will ordinarily drop into position between the jaws 2 and'6, but occasionally,

when a line is too full, the matrix next to' the jaw 6 will bind on the head 7 and the weight of the castingelevator will cause the matrix to press against the head 7 and compress the spring 16 and cause the head 7 to recede, when the bottom of the matrix willv lodge against the vertical extension 8 on the base 6 and be prevented thereby from being lowered into casting position,

In common practice, when the line is too full, the matrix next 1' 9 1 5? right hand cast;

ing jaw will be forced almost down into casting position, and as a result, during the casting operation, will be sheared off on the bottom, whereas, in the mechanism described, such an occurrence is impossible and only a normal line of matrices may be lowered into casting position.

In order to render the right hand casting jaw capable of use as a matrix slide holder, I make this jaw movable in a manner similar to the left hand jaw 2 and provide a latch 18 for holding the jaw either in its normal position to the right or in contact with the left hand jaw 2 when it is used as a casting surface, a short die 26 being provided on the face.

The latch 18 is pivoted in a recess 19 in the floor 20 on a pin or screw 21 and is held in operative position by means of a spring 22 secured at one end to the bottom of the jaw 6, the other end of the spring resting against the bottom of the latch.

An upwardly extending lug 23 on the outer end of the latch engages the end of the vise frame head 24 for holding the jaw to the right and engages a notch 25 in the vise frame head 24 for holding the jaw to the left.

Having thus described my invention, what I claim as new and desire Letters Patent for, is

1. In a typographical machine, the combination with the casting jaws, of a matrix block for each of said jaws for casting the border and dash slugs of different length, slidably disposed on said jaws and capable of being reversed end for end, for moving the matrices formed thereon from the range of the mold, at will.

2. In a typographical machine, the combiend on each of said jaws and provided with means for producing border and dash slugs of different length, said matrix blocks when reversed relative to said jaws serving to remove the matrices thereon from the range of the mold and to render said matrix blocks capable of use for the production of blank slugs.

3. In a typographical machine, the combination with the casting jaws, of a matrix block slidably supported on each of said jaws, having means formed thereon near one edge for the production of border and dash slugs of different length, and the remaining portions thereof having smooth faces for presentment to the mold for the production of blank slugs, said blocks being reversible, end for end at will, for placing selected portions thereof Within the range of the mold.

4:. In a typographical machine, the combination with the right and left hand casting jaws for confining the line of matrices therebetween, said left hand jaw being stationary and adapted to rigidly engage one end of the matrix line during the casting operation, of a movable head on said right hand casting jaw having a vertical extension at the rear end for slidably and resiliently sup- POIlliDg' saidhead, and a relatively smaller extension at the front end for limiting the action of said head.

5. In a typographical machine, the combination with the opposing right and left hand casting jaws, of a movable matrix engaging head on said right hand jaw, there being extensions on said jaw for supporting said head and guides supported in one of said extensions and insertible in said head for directing the movement thereof to compensate for the surplus matrices in an overset line and preventing damage thereto. 6. In a typographical machine,the combination with the right hand casting jaw having vertical extensions at the opposite ends thereof, of a head movably disposed between said extensions for engagement with one end of the matrix line, a horizontally disposed guide rod secured in one of said heads and slidable in one of said extensions for guiding said head, and means intermediate of sa1d head and sa1d extension for holding the head in reslllent engagement wlth the 'matrix line. 1 nation with the casting jaws, of a matrix block slidably held and reversible end for 7. In a typographical machine, the combination with the right hand casting jaw, of a resilient andslidable head thereon for preventing damage to a line of matrices, a die formed thereon for producing short border and dash slugs, a latch pivoted thereto for locking said die in a stationary position, a spring on sa1d jaw for holdlng sa1d latch in operative position, and a left hand jaw Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

